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Delta deposit remote sensing detection method and device

A detection method and detection device technology, applied in the field of sedimentology, can solve the problems of complex operation, heavy workload, time-consuming and the like

Active Publication Date: 2015-12-09
PETROCHINA CO LTD
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Problems solved by technology

This laboratory detection method has high precision, but the operation is complex and time-consuming, and can only obtain the granularity characteristics of one point, and cannot directly obtain the granularity characteristics of the entire surface. If the test involves the entire surface, the workload is huge

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  • Delta deposit remote sensing detection method and device
  • Delta deposit remote sensing detection method and device
  • Delta deposit remote sensing detection method and device

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Embodiment Construction

[0101] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0102] In order to solve the problem that the particle size characteristics of the entire surface cannot be directly obtained in the prior art, or the problem of huge workload when testing the entire surface, the present invention introduces satellite remote sensing technology on the basis of the study of the sediment particle size-reflectivity model. The modern sedimentary investigation of the delta uses satellite remote sensing data to realize the prediction ...

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Abstract

The invention discloses a delta deposit remote sensing detection method and device. The method comprises the following steps: sampling surface deposits on different parts of different sedimentary facies in a delta; obtaining the particle size distribution of obtained deposit sample, determining the particle size of obtained deposit sample; obtaining the reflectivity spectrum of deposit sample, re-sampling the reflectivity spectrum to obtain reflectivity spectrum that is identical with the satellite data spectral band; establishing a model representing the relationship between the particle size of the deposit and the reflectivity of the satellite data spectral band; obtaining the satellite data to establish a satellite look-up table, selecting part of satellite data; subjecting the selected part of satellite data to geometric correction, then converting the satellite data into reflectivity data; according to the spectral characteristics and textural characteristics of reflectivity data, classifying the reflectivity data, extracting the reflectivity data of surficial exposed area on the delta; predicting the percentage contents of clay, silt, and sand in the surface deposit according to the reflectivity data of surficial exposed area on the delta, and drawing a picture representing the percentage contents of clay, silt, and sand in the delta.

Description

technical field [0001] The invention relates to a delta modern sediment investigation technology, in particular to a delta sediment remote sensing detection method and device, belonging to the field of sedimentology. Background technique [0002] For oil and gas exploration and development, delta is a very important type of sedimentary facies. In the delta deposition, source rocks are developed in the pro-delta, and the reservoir properties of the delta front and delta plain are good, and the oil and gas source-reservoir-cap assemblage is very favorable. In many oilfields in my country, such as Daqing, Shengli, Liaohe, Xinjiang and other oilfields, delta reservoirs are important oil producing layers. Understanding the delta depositional model has important practical and theoretical significance for oil and gas exploration and development. In order to deeply explore the sedimentary laws of this type of oilfield, many researchers have applied the method of "reviewing the pas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02
Inventor 邢学文刘松周红英谢兴张强
Owner PETROCHINA CO LTD
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